Details

Autor(en) / Beteiligte

• Liu, Zhiwei
• Qayyum, Munzarin F
• Wu, Chao
• Whited, Matthew T
• Djurovich, Peter I
• Hodgson, Keith O
• Hedman, Britt
• Solomon, Edward I
• Thompson, Mark E

Titel

A Codeposition Route to CuI−Pyridine Coordination Complexes for Organic Light-Emitting Diodes

Ist Teil von

• Journal of the American Chemical Society, 2011-03, Vol.133 (11), p.3700-3703

Ort / Verlag

United States: American Chemical Society

Erscheinungsjahr

2011

Quelle

MEDLINE

Beschreibungen/Notizen

• We demonstrate a new approach for utilizing CuI coordination complexes as emissive layers in organic light-emitting diodes that involves in situ codeposition of CuI and 3,5-bis(carbazol-9-yl)pyridine (mCPy). With a simple three-layer device structure, pure green electroluminescence at 530 nm from a Cu(I) complex was observed. A maximum luminance and external quantum efficiency (EQE) of 9700 cd/m2 and 4.4%, respectively, were achieved. The luminescent species was identified as [CuI(mCPy)2]2 on the basis of photophysical studies of model complexes and X-ray absorption spectroscopy.